Engine



(No Model.) I v A. NOTEM AN.

PORTABLE STEAM BORING ENGINE Patented Feb. 27, 1883.

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PORTABLE STEAM BORING-ENGINE.

SPECIFICATION forming part of Letters Patent No. 273,136, dated February27, 1883.

Application filed May 17, 1882. (No model.)

To all whom it may concern Be it known that I, ALONZO NOTEMAN, a citizenof the United States, residing at T0- ledo, in the county of Lucas andState of Ohio, have invented certain new and useful Improvements inPortable Steam Boring-Engines, of which the following is aspecification, reference being had therein to the accompanying drawings,and in which- Figure l is a side elevation of my improved portableengine, specially adapted to drive angers or similar cutting-instrumentsor screwdrivers. Fig. 2 is a side elevation, and Fig. 3 is averticalelevation, of the same; and Fig. 4 is a detail view.

This invention has relation to improvements in portable enginesspecially adapted to drive auger-drills or like boring-instruments orscrew-drivers; and it consists of a shaft having one end connected to acylinder having pistons capable of movement into and out of saidcylinder within an'eccentric steamchamber, and its other end providedwith a pinion and rotating in a sleeve fixed to the engine-cylinder, andupon which is a mounted, also, a sleeve or bearing having a shaftprovided with a larger pinion gearing with the aforesaid pinion, andcapable of receiving the anger or boring-instrument or screw-driver.

It consists, secondly, of a chambered valve adapted to be adjusted orshifted to either one of two steam-passages of the engine, and having anexhaust port or passage to enable the reversal of the action of theengine-pistons; and, thirdly, of special mechanismto effect thereversing operation, and details of construction, substantially ashereinafter more fully set forth and claimed.

To carry-out my invention I employ an outer cylinder, A, constructed inthe usual manner as steam-cylinders in general, saving for convenienceit may be cast into two parts or halves, dividing it transversely aboutcentrally of its length, and with suitable flanges to permit them to bereadly bolted together. Cast similarly and with the halves of thecylinder A is a supplemental cylinder, A, the two being thus connectedtogether.

Within the cylinder A is arranged an eccen tric steam-chamber, B, whichisconnected by two steam-passages--a live-steam passage, a, and anexhaust-passage, a-with the chamber hot the cylinder A, into which thesteam enters through a supply-pipe, c, at its bottom.

0 is a cylinder capable of rotating in the eccentric chamber B, andarranged to bear at a central point between the passages a a. It has twopistons or wings, d d, fitted to slide in and out of said cylinder, andto separately receive the impact of steam, and thus be carried around byit from the live-steam passage to, which accordingly affect the cylinderG, and consequently cause it to rotate, as will be readily understood.

To the piston-cylinder G is secured the inner end of a shaft, D, bearingin a sleeve, e,

projecting from one head of the outer cylinder V or casing, A.

Upon the outer end of the shaft D is a pinion, f, which meshes with alarger pinion, f, affixed to the auger-drill or other boring orscrew-driver spindle-receiving shaft g. The latter is journaled in abearing or sleeve, it, supported or mounted, as shown or otherwise, uponthe sleeve 6 of the shaft D.

It is obvious that from theforegoing arrangement a rotary motion will beimparted to the boringinstrument or screwdriver, whichever may be used,as the cylinder-pistons are acted upon by the'steam in the eccentricchamber B. Oil-cup i is provided to keep the shaft D properlylubricated.

At the opposite end of the outer cylinder or casing, A, is secured, by ascrew and sleevefit- .ted upon a projection thereat, a bar or rod, to

which is secured a rest, j, to enable the convenient resting of theengine intact with the body of the operator. It is supported by a strap,j, or other suitable medium passed around the neck of the operator, andconnected to spring-snaps j hooked into the eyes of staplesj on thesides of the casing A, orin other suitable manner.

E E are hand-rods connected by cross-rods k, suitably fastened to thecasing A, to enable the convenient handling of the engine inmanipulatingthedrili,boringinstrumentorscrewdriver.

F is the reversing-valve, adjusted to partially rotate or permit ofshifting its open chamber F from one steam-passage to the other of thepassages to (1 upon an exhaust pipe or tube,i centrally arranged in thesteam-chamber I), as clearly shown in Figs. 2 and 3. The chamber 2erases F of the valve F, which, as above intimated, opens into either ofpassages to a, exhausts through the axial pipe Z. 7

The mechanism to permit the reversing of the valve F, which isnecessary, in order to reverse the action of the engine when it isdesired to withdraw the auger or implement, consists ofa toggled lever,G, one arm or link, connected to a sleeve, m, of the valve, fitted toturn on the pipe I, and another arm or link, connected to a knobbed orhandled ring or ferrule, 02, fitted to turn on the hand-rod E. Thesteam-supply pipe is provided with a blowoff valve, 0, arranged in abranch pipe thereof, and is designed to have a cut-off valve to arrestthe action of the engine when necessary.

I claim and desire to secure by Letters Patcut- 1. The combination, withthe main casing of the engine and the piston-shaft D, provided on itsouter end with the pinion f, of the bracket D, having its lower portionsleeved upon the shaft D and over the projecting bearing of the endplate of the casing -A,-and having a bearing, h, on its upper edge, theshaft 9, journaled in the bearing h, and provided at its outer end withmeans for holding the shank of boringinstrumenaand the wheel f, fixedupon the shaft 9 and meshing with the pinion f, substantially as setforth.

2. The combination, with the steam-box A, having the ports a a, leadinginto the cylinder B, of the exhaust-pipe 1, extended into thesteam-chamber b, the valve F, sleeved upon the inner end of pipe l, andarranged to alternately close and open the ports rm, and havin g itssleeve around the said pipe I extended to the outside of the steam-box,and means for turning the sleeve and valve, substantially as set forth.7

3. In a steam-engine, the combination, with the reversing-valve F, ofthe toggled lever G, connected, one arm toa sleeve of the valve andanother arm to a ring or ferrule, a, having a knob or handle, andadapted to turn upon the hand-rod E of the engine, substantially as andfor the purpose set forth.

4. The combination, substantially as hereinbefore set forth, of thecasing A, the stirrup 3' the handles E E, supported upon later-'ally-extended arms K, the breast-platej, provided with a hollow shankand sleeved upon the end of the head-plate, of cylinder A, the shaft D,provided with pinion f, the bracket D, supported upon the shaft D, theshaft 9, journaled in the bracket D, and the gearwheel f, supported uponthe shaftg and meshing with the pinion f, substantially as set forth. Intestimony whereof I affix my signature in presence of two witnesses.

A. NOTEMAN. Witnesses:

(J. S. CURTIS, PAUL RAYMOND.

